The Chelsea 272MDAJP-B5SD is a 272 Series 6-bolt hot shift power take-off assembly, part of Chelsea's medium-duty PTO line that consolidates the 230, 231, 236, 238, 270, and 271 series into a single platform. The 272 Series supports up to 300 lb-ft intermittent torque and carries a continuous-duty torque rating (de-rated 30% from intermittent). This assembly is available with pneumatic or hydraulic shift and includes an integral air control valve. Rotatable flanges add installation flexibility. The 272 Series is used across aerial, towing and recovery, construction equipment, and water truck applications. Call us to confirm proper fit for your transmission and pump configuration.
Features
Chelsea 272 Series 6-bolt mounting configuration
Hot shift operation with pneumatic or hydraulic shift options
Integral air control valve included
Up to 300 lb-ft intermittent torque capacity
Rotatable flanges for flexible installation
Suitable for aerial, construction, towing and recovery, and water truck applications
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque (Series): 201-300 lb-ft (401-500 Nm)
- Output Power (Series): 56+ HP (41-50 kW)
- Output Shaft Options (Series): Round shaft 1 in. with 1/4 in. key; Round shaft 1-1/4 in. with 5/16 in. key
- Continuous Torque Rating: De-rate 30% from intermittent rating (check application pages for actual torque ratings)
- Lubricant Options: No pressure lube, pressure lube, or wet spline
Additional Information
The Chelsea 272 Series consolidates six prior PTO series - the 230, 231, 236, 238, 270, and 271 - into one flexible platform. The series offers nine speed ratios and eighteen shift options, covering the most popular direct-mount and driveshaft output configurations. Direct-mount options include an optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart-Start option for high-torque start-up conditions. Part number 272MDAJP-B5SD or 272MDAJPB5SD is also referenced as SP272MDAJP-B5SD. Sold by Pro Gear and Transmission.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
